- Fixed auto resize behavior.
- Improved for custom.
- Fixed documentation.
- Refactorred.
- Fixed handlers.
- Improved view.
- Fixed custom.
- Fixed lua matchers.
- Fixed matcher_regexp.
- Fixed auto preview error.
- Fixed auto preview error.
- Deleted obsolete function.
Merge pull request #243 from csexton/doc

Update intro and usage documentation
- Improved documentation.
Merge branch 'master' into ver.5.1
- Improved for options.
- Improved option parser.
- Improved initialize unite buffer.
- Improved context initialization.
- Refactorred.